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Finding the Fourth Proportional to 247,328.40, 370,992.60 and 60,339.90

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Solution

The fourth proportional to 247,328.40, 370,992.60 and 60,339.90 is: 90,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,328.40 : 370,992.60 = 60,339.90 : x
  2. Step 2: Convert to fraction form
    247,328.40/370,992.60 = 60,339.90/x
  3. Step 3: Cross multiply
    247,328.40x = 370,992.60 × 60,339.90
  4. Step 4: Simplify right side
    247,328.40x = 22,385,656,384.74
  5. Step 5: Solve for x
    x = 22,385,656,384.74/247,328.40
  6. Step 6: Final answer
    x = 90,509.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.